20185205

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:329

約数の個数: 24

約数和(自身を含む): 26266920

約数和(自身を除く): 6081715

約数列:

[1, 5, 17, 61, 85, 229, 289, 305, 1037, 1145, 1445, 3893, 5185, 13969, 17629, 19465, 66181, 69845, 88145, 237473, 330905, 1187365, 4037041, 20185205]

約数ペア:

[(1, 20185205), (5, 4037041), (17, 1187365), (61, 330905), (85, 237473), (229, 88145), (289, 69845), (305, 66181), (1037, 19465), (1145, 17629), (1445, 13969), (3893, 5185)]